In these days of Internet hoaxes and Twitter journalism, we sometimes forget about the excellent journalists who do the hard work of digging deep into hard news. These stories often have a huge impact. Meet Carol Leonnig. You are definitely aware of her work. From Yahoo News: The reporter who brought down the Secret Service’s director.

+ Want to see how big an impact investigative journalism can have? Check out the work of my friends at the excellent Center for Investigative Reporting: 3 investigations, 3 new laws.